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3 Stage Intake Manifold Swap

Tips:

  • Replace bolts from where you get them
  • Label plugs before unplugging
  • Clean block
  • Unlock doors, put back seats down

Steps:

  • Unplug battery negative (10mm)
  • Remove hood (10mm)
  • remove air filter cabin, cowl, engine cover
  • Remove cross bracing (T14 bottom, T18 Top)
  • Remove Intake box and hoses
  • Remove power steering reservoir (10mm)
    • put it to the side, no need to disconnect
  • Unplug a bunch of stuff on the intake including IDSA valve connections
    • o2 sensors on top
    • alternator cable
    • PDV hose to VC
    • throttle body cable
  • Remove throttle body (10mm)
    • Clean
  • Remove junction box (optional)
    • torx bit on each side to remove whole bracket
    • or.. PB Blaster and flat head screwdriver to pry it off. Don't break clips.
  • Remove O2 sensors. Label before unplug
    • push cable down through intake manifold
    • pull out of the way from the back
  • Remove PCV hose at firewall
    • release clips
  • Remove fuel hose bracket @ firewall side
  • Remove Manifold
    • 11mm bolts, crack then remove by hand
    • Break free
    • Unplug cables underneath
    • Remove pvc to oil pan hose

Manifold Delete complete

  • Clean manifold interface
  • Transfer junk from old manifold to new manifold
  • Replace/Insert manifold gaskets
  • Transfer L shaped pdv hose
  • Plug in pcv hoses to housing + manifold
    • third manifold PCV small hose comes from junction box

Manifold is ready to go in the car.

  • Find DISA connectors
    • Long goes on inside, short goes on outside
  • Get O2 sensors out of the way
  • Struggle for a bit as you wedge everything in. 
  • Start plugging things in before fully inserted
    • Remove dust covers from DISA connectors
    • plug everything else in
  • Everything is in reverse from here out. 
    • Cross pattern on bolt tighten
    • snug is good enough
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